\documentclass[letterpaper,10pt]{article}
\usepackage{graphicx}
\begin{document}

\begin{figure}
    \centering
    \includegraphics[scale=1]{ap-to-gsystem.1.mps}
    \caption{ap-to-gsystem.1.mps}
\end{figure}

\begin{figure}
    \centering
    \includegraphics[scale=1]{cf-to-gsystem.1.mps}
    \caption{cf-to-gsystem.1.mps}
\end{figure}

\begin{figure}
    \centering
    \includegraphics[scale=1]{cs-to-gsystem.1.mps}
    \caption{cs-to-gsystem.1.mps}
\end{figure}

\begin{figure}
    \centering
    \includegraphics[scale=1]{eol-to-gsystem.1.mps}
    \caption{eol-to-gsystem.1.mps}
\end{figure}

\begin{figure}
    \centering
    \includegraphics[scale=1]{gsystem-priklad.1.mps}
    \caption{gsystem-priklad.1.mps}
\end{figure}

\begin{figure}
    \centering
    \includegraphics[scale=1]{re-to-gsystem.1.mps}
    \caption{re-to-gsystem.1.mps}
\end{figure}

\end{document}
